14 records found.

2026_PRB_Nishino_accepted.pdf
Atomistic model analysis of the spin reorientation transition in ( Nd 1 − x Dy x ) 2 Fe 14 B systems
Journal article
Creator
ORCID SAMURAI ;
Rachida Lamouri (author) (Search by this author)
ORCID ;
Hisazumi Akai (author) (Search by this author)
Keyword
Spin reorientation transition, Crystal-field theory, Magnetic phase transitions, Monte Carlo methods, Transition-metal rare-earth alloys, Permanent magnets
Date published
2026-02-17
Updated at
2026-02-19 16:30:18 +0900
66_MT-M2024132.pdf
Atomistic Model Study on Magnetic Properties of Permanent Magnets—Treatment of Thermal Fluctuation and Thermal Effects, and Future Perspective—
Journal article
Creator
ORCID SAMURAI ;
Seiji Miyashita (author) (Search by this author)
Keyword
atomistic spin model, thermal fluctuation, permanent magnets, stochastic Landau-Lifshitz-Gilbert equation, Monte Carlo method
Date published
2025-01-01
Updated at
2025-11-28 16:30:11 +0900
repm2025_Nishino.pdf
Atomistic model study on thermodynamic properties of (Nd1-xDyx)2Fe14B and dysprosium substitution effect on coercivity in neodymium permanent magnets
Conference poster
Creator
Masamichi Nishino (author) (Search by this author)
Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Solid State Materials Group, National Institute for Materials Science
ORCID SAMURAI ;
Rachida Lamouri (author) (Search by this author)
Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Solid State Materials Group, National Institute for Materials Science
;
Seiji Miyashita (author) (Search by this author)
Department of Physics, Graduate School of Science, The University of Tokyo
Keyword
neodymium magnets, dysprosium-substituted magnets, thermodynamic properties, dynamics, coercive force, atomistic model
Date published
Updated at
2025-10-01 16:30:20 +0900
Nishino-PDSTM2025.pdf
Metastable States Induced by Elastic Interactions in Spin-Crossover Materials
Conference presentation
Creator
Masamichi Nishino (author) (Search by this author)
Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Solid State Materials Group, National Institute for Materials Science
ORCID SAMURAI ;
Seiji Miyashita (author) (Search by this author)
Keyword
metastable states, elastic Interactions, multistep transitions, spin crossover, spin transitions
Date published
Updated at
2025-06-20 16:30:38 +0900
EurJIC_2024_e202400656.pdf
Mechanisms of Separation of the Elastic Step and the Thermal Step
Journal article
Creator
Seiji Miyashita (author) (Search by this author)
ORCID ; ORCID SAMURAI ;
Cristian Enachescu (author) (Search by this author)
ORCID
Keyword
elastic interaction, Elastic Step, Thermal Step, two-temperature model, modeling of spin crossover phenomena
Date published
2024-12-20
Updated at
2025-10-28 08:30:24 +0900
Nishino_EurJIC_accepted_manuscript.pdf
Dynamical Simulation for Long‐Time Relaxation From Metastable States: Quantitative Estimation of Coercive Field and Relaxation Time
Journal article
Creator
Masamichi Nishino (author) (Search by this author)
National Institute for Materials Science
ORCID SAMURAI ;
Seiji Miyashita (author) (Search by this author)
ORCID
Keyword
coercive field, long-time relaxation, magnetization reversal, metastable state, nucleation
Date published
2024-12-12
Updated at
2025-11-04 08:30:03 +0900
250-7_研究会資料.pdf
原子論を基礎としたスピンモデルによる永久磁石の磁気特性の研究
Conference presentation
Creator
西野 正理 (author) (Search by this author)
ナノアーキテクトニクス材料研究センター/量子材料分野/量子物質創製グループ, 物質・材料研究機構
ORCID SAMURAI
Keyword
永久磁石, 原子論的スピンモデル　, 保磁力
Date published
Updated at
2024-10-17 12:30:32 +0900
J. Appl.Phys.136,033904(2024).pdf
Thermodynamic properties of R2Fe14B (R=Dy, Nd) and dysprosium random substitution effect on coercivity in neodymium permanent magnets
Journal article
Creator
Masamichi Nishino (author) (Search by this author)
National Institute for Materials Science
ORCID SAMURAI ;
Hiroshi Hayasaka (author) (Search by this author)
National Institute for Materials Science
ORCID ;
Seiji Miyashita (author) (Search by this author)
ORCID
Keyword
R2Fe14B, Atomistic model, Coercivity, Dy substitution effect, Thermodynamic properties, Monte Carlo simulation, Stochastic LLG simulation
Date published
2024-07-21
Updated at
2024-07-24 16:30:21 +0900
2023_012.pdf
原子論に基づく次世代マイクロマグネティクスによる 保磁力制御法の開発
Report
Creator
西野 正理 (author) (Search by this author)
ナノアーキテクトニクス材料研究センター/量子材料分野/量子物質創製グループ, 物質・材料研究機構
ORCID SAMURAI ;
早坂 太志 (author) (Search by this author)
ナノアーキテクトニクス材料研究センター/量子材料分野/量子物質創製グループ, 物質・材料研究機構
;
宮下精二 (author) (Search by this author)
Department of Physics, The University of Tokyo
Keyword
coercivity, neodymium magnets, atomistic theory, dysprosium substitution, microscopic mechanism, thermal fluctuation
Date published
Updated at
2024-03-19 16:30:16 +0900
Abstract_Nishino_PDSTM2023.pdf
Quantitative estimation of coercive force of a magnetic grain by dynamical simulations
Conference presentation
Creator
西野 正理 (author) (Search by this author)
Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Solid State Materials Group, National Institute for Materials Science
ORCID SAMURAI ;
宮下精二 (author) (Search by this author)
Graduate School of Science, The University fo Tokyo
Keyword
coercive force, magnetic grain, dynamical simulations, neodymium permanent magnet, zero-field energy barrier, stochastic LLG simulations
Date published
Updated at
2023-12-11 15:02:42 +0900